split(Configuration conf,
ResultSet results,
String colName)
Given a ResultSet containing one record (and already advanced to that record)
with two columns (a low value, and a high value, both of the same type), determine
a set of splits that span the given values.

BigDecimalSplitter

split

Given a ResultSet containing one record (and already advanced to that record)
with two columns (a low value, and a high value, both of the same type), determine
a set of splits that span the given values.